CN104455932A - Novel submerged arc furnace smoke heat preservation pipe - Google Patents
Novel submerged arc furnace smoke heat preservation pipe Download PDFInfo
- Publication number
- CN104455932A CN104455932A CN201410584608.3A CN201410584608A CN104455932A CN 104455932 A CN104455932 A CN 104455932A CN 201410584608 A CN201410584608 A CN 201410584608A CN 104455932 A CN104455932 A CN 104455932A
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- China
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- parts
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- aggregate
- steel pipe
- main body
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/02—Rigid pipes of metal
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
Abstract
A novel submerged arc furnace smoke heat preservation pipe comprises a steel pipe body. A fiber-reinforced abrasion-resistant pouring material layer is arranged on the inner wall of a pipeline of the steel pipe body, and a piece of iron gauze is arranged in the fiber-reinforced abrasion-resistant pouring material layer. The fiber-reinforced abrasion-resistant pouring material layer and the inner wall of the pipeline of the steel pipe body are oppositely fixed through first V-shaped threaded clasp nails, second V-shaped threaded clasp nails and the iron gauze. The fiber-reinforced abrasion-resistant pouring material layer comprises, by weight, 20 parts to 25 parts of coarse aggregates, 15 parts to 30 parts of intermediate aggregates, 15 parts to 20 parts of fine aggregates, 5 parts to 10 parts of yttrium oxide, 5 parts to 10 parts of silica powder, 7 parts to 15 parts of alumina micro powder, 0.99 part to 3 parts of steel fiber, and 5 parts to 11 parts of aluminate cement.
Description
Technical field
The present invention relates to pipeline heat-insulating technology field, particularly the novel mineral heating furnace flue thermal insulation pipe of one.
Background technique
The simple thermal insulating material of the many employings of existing mineral heating furnace flue insulation pipe carries out pipe insulation, because thermal insulating material does not possess intensity, in long running, can occur that pipeline is inhaled flat; Coming off due to thermal insulating material, reduces flue-gas temperature, fume afterheat generating efficiency is obviously reduced simultaneously.
Summary of the invention
In view of this, be necessary to provide a kind of high insulating effect and the novel mineral heating furnace flue thermal insulation pipe of long service life.
A kind of novel mineral heating furnace flue thermal insulation pipe, comprises steel pipe main body, the inner-walls of duct of steel pipe main body is provided with the fiber reinforcement wear-resistant pouring bed of material, be provided with chain link fence in the fiber reinforcement wear-resistant pouring bed of material.Wherein, the inner-walls of duct of steel pipe main body welds the first shape-V thread dog, second shape-V thread dog, the tip of the first shape-V thread dog is fixedly connected with the inner-walls of duct of steel pipe main body, two separating ends of the first shape-V thread dog extend to chain link fence and are fixedly connected with chain link fence, two separating ends of the second shape-V thread dog are fixedly connected with the inner-walls of duct of steel pipe main body, the tip of the second shape-V thread dog extends to chain link fence and is fixedly connected with chain link fence, and then utilize the first shape-V thread dog, second shape-V thread dog and chain link fence are by relative with the inner-walls of duct of steel pipe main body for the fiber reinforcement wear-resistant pouring bed of material fixing, wherein, the fiber reinforcement wear-resistant pouring bed of material comprises coarse aggregate, middle aggregate, fine aggregate, silicon powder, alumina powder, Steel Fibre, aluminate cement and yittrium oxide, wherein the parts by weight of above-mentioned raw materials are: coarse aggregate 20 ~ 25, middle aggregate accounts for 15 ~ 30, and fine aggregate accounts for 15 ~ 20, yittrium oxide 5 ~ 10, silicon powder 5 ~ 10, alumina powder 7 ~ 15, Steel Fibre 0.99 ~ 3, aluminate cement 5 ~ 11.Wherein, coarse aggregate is mullite, Zirconium oxide fibre; Middle aggregate comprises silicon carbide and mullite, and fine aggregate is high grade bauxite.
In above-mentioned novel mineral heating furnace flue thermal insulation pipe, the described fiber reinforcement wear-resistant pouring bed of material is by with mullite, Zirconium oxide fibre is as coarse aggregate, utilize yittrium oxide to keep the stability of Zirconium oxide fibre, be middle aggregate with silicon carbide and mullite, again using high grade bauxite as fine aggregate, add Reactive alumina and accelerate solid-phase reaction, add silicon powder to improve the acid fastness ability of castable, Steel Fibre and Zirconium oxide fibre acting in conjunction are to improve the thermal shock resistance of fiber reinforcement wear-resistant castable, simultaneously by shape-V thread dog and chain link fence by relative with the inner-walls of duct of steel pipe main body for the fiber reinforcement wear-resistant pouring bed of material fixing, so make pipeline outer wall temperature (under normal temperature state) lower than 50 DEG C, effectively can ensure that the flue-gas temperature in novel mineral heating furnace flue thermal insulation pipe can not reduce, ensure that the thermal insulation layer people in running after having constructed can enter in pipeline simultaneously and carry out inspection deashing, and do not trampled on breakage, the working life of thermal insulation layer reaches more than 10 years.
Accompanying drawing explanation
Accompanying drawing 1 is the novel mineral heating furnace flue thermal insulation pipe cross-sectional view of a better embodiment.
In figure: novel mineral heating furnace flue thermal insulation pipe 30, steel pipe main body 31, the fiber reinforcement wear-resistant pouring bed of material 32, chain link fence 33, first shape-V thread dog 360, second shape-V thread dog 361.
Embodiment
Referring to Fig. 1, novel mineral heating furnace flue thermal insulation pipe 30 comprises steel pipe main body 31, the inner-walls of duct of steel pipe main body 31 is provided with the fiber reinforcement wear-resistant pouring bed of material 32, be provided with chain link fence chain link fence 33 in the fiber reinforcement wear-resistant pouring bed of material 32, the mesh of chain link fence 33 is 20 × 20mm or is 15 × 15mm.Wherein, the inner-walls of duct of steel pipe main body 31 welds the first shape-V thread dog 360, second shape-V thread dog 361, the tip of the first shape-V thread dog 360 is fixedly connected with the inner-walls of duct of steel pipe main body 31, two separating ends of the first shape-V thread dog 360 extend to chain link fence 33 and are fixedly connected with chain link fence 33, two separating ends of the second shape-V thread dog 361 are fixedly connected with the inner-walls of duct of steel pipe main body 31, the tip of the second shape-V thread dog 361 extends to chain link fence 33 and is fixedly connected with chain link fence 33, and then utilize the first shape-V thread dog 360, second shape-V thread dog 361 and chain link fence are by relative with the inner-walls of duct of steel pipe main body 31 for the fiber reinforcement wear-resistant pouring bed of material 32 fixing, the inner-walls of duct of steel pipe main body 31 and the first shape-V thread dog 360, second shape-V thread dog 361 is brushed with coal tar paint.The processing requirements of the fiber reinforcement wear-resistant pouring bed of material is for filling up, tamping, and thickness is 30 ~ 50mm, makes smooth surface; The fiber reinforcement wear-resistant pouring bed of material comprises coarse aggregate, middle aggregate, fine aggregate, silicon powder, alumina powder, Steel Fibre, aluminate cement and yittrium oxide, wherein the parts by weight of above-mentioned raw materials are: coarse aggregate 20 ~ 25, middle aggregate accounts for 15 ~ 30, fine aggregate accounts for 15 ~ 20, yittrium oxide 5 ~ 10, silicon powder 5 ~ 10, alumina powder 7 ~ 15, Steel Fibre 0.99 ~ 3, aluminate cement 5 ~ 11.Wherein, coarse aggregate is mullite, Zirconium oxide fibre; Middle aggregate comprises silicon carbide and mullite, and fine aggregate is high grade bauxite.
Refractory material is in order to reach desirable fireproof high-temperature resistant effect, the structural type of what is called " dense accumulation " must be formed, this structural type is thick, middle aggregate by occupying space, material large portion, the fine aggregate in thick, the middle aggregate space of filling, the micro mist in the carse, medium and small aggregate space of filling obtain, therefore select very important to the particle diameter of castable refractory kinds of ingredients, in the present embodiment, in described coarse aggregate, the particle size of mullite is 5.0 ~ 3.0mm, Zirconium oxide fibre length is 5.0 ~ 3.0mm; In described middle aggregate, the particle size of each component is 2.0 ~ 1.0mm; The particle size of described fine aggregate is 0.9 ~ 0.5mm.
The alumina powder added in the present invention is activated alumina, and the principal crystalline phase of activated alumina is α ~ Al
2o
3physicochemical property is d≤2.0 μm, true density>=3.95g/cm, Na O is less than or equal to 0.1%, activated alumina can make the castable refractory apparent porosity of cast less, further, utilize the high thermal conductivity of silicon carbide and Steel Fibre to improve the thermal shock resistance of castable, and utilize Zirconium oxide fibre to improve the resistance to mechanical vibratility of castable, and by the oxidation of silicon carbide, form one deck SiO at refractory surface
2sediments shutoff pore, utilizes silicon powder shutoff refractory casting material layer internal porosity, improves the corrosion resistance of refractory casting material with this.
Claims (3)
1. a novel mineral heating furnace flue thermal insulation pipe, comprises steel pipe main body, it is characterized in that: the inner-walls of duct of steel pipe main body is provided with the fiber reinforcement wear-resistant pouring bed of material, is provided with chain link fence in the fiber reinforcement wear-resistant pouring bed of material, wherein, the inner-walls of duct of steel pipe main body welds the first shape-V thread dog, second shape-V thread dog, the tip of the first shape-V thread dog is fixedly connected with the inner-walls of duct of steel pipe main body, two separating ends of the first shape-V thread dog extend to chain link fence and are fixedly connected with chain link fence, two separating ends of the second shape-V thread dog are fixedly connected with the inner-walls of duct of steel pipe main body, the tip of the second shape-V thread dog extends to chain link fence and is fixedly connected with chain link fence, and then utilize the first shape-V thread dog, second shape-V thread dog is by relative with the inner-walls of duct of steel pipe main body for the fiber reinforcement wear-resistant pouring bed of material fixing, wherein, the fiber reinforcement wear-resistant pouring bed of material comprises coarse aggregate, middle aggregate, fine aggregate, silicon powder, alumina powder, Steel Fibre, aluminate cement and yittrium oxide, wherein the parts by weight of above-mentioned raw materials are: coarse aggregate 20 ~ 25, middle aggregate accounts for 15 ~ 30, and fine aggregate accounts for 15 ~ 20, yittrium oxide 5 ~ 10, silicon powder 5 ~ 10, alumina powder 7 ~ 15, Steel Fibre 0.99 ~ 3, aluminate cement 5 ~ 11, wherein, coarse aggregate is mullite, Zirconium oxide fibre, middle aggregate comprises silicon carbide and mullite, and fine aggregate is high grade bauxite.
2. novel mineral heating furnace flue thermal insulation pipe as claimed in claim 1, is characterized in that: in its coarse aggregate, mullite 45 ~ 65, Zirconium oxide fibre 35 ~ 55, in middle aggregate, and silicon carbide 35 ~ 55, mullite 45 ~ 65.
3. novel mineral heating furnace flue thermal insulation pipe as claimed in claim 2, is characterized in that: in described coarse aggregate, the particle size of mullite is 5.0 ~ 3.0mm, Zirconium oxide fibre length is 5.0 ~ 3.0mm; In described middle aggregate, the particle size of each component is 2.0 ~ 1.0mm; The particle size of described fine aggregate is 0.9 ~ 0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410584608.3A CN104455932B (en) | 2014-10-28 | 2014-10-28 | Novel mineral heating furnace flue insulating tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410584608.3A CN104455932B (en) | 2014-10-28 | 2014-10-28 | Novel mineral heating furnace flue insulating tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104455932A true CN104455932A (en) | 2015-03-25 |
| CN104455932B CN104455932B (en) | 2016-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410584608.3A Active CN104455932B (en) | 2014-10-28 | 2014-10-28 | Novel mineral heating furnace flue insulating tube |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109931442A (en) * | 2019-03-28 | 2019-06-25 | 贵阳明通炉料有限公司 | A kind of high medium temperature wind and smoke pipeline of wear resistant heat preserving composite construction and production method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH058335A (en) * | 1991-06-28 | 1993-01-19 | Sumitomo Electric Ind Ltd | Heat-shrinkable foamed tube |
| CN2293699Y (en) * | 1997-05-16 | 1998-10-07 | 郭春秋 | Direct buried corrosion-proof insulated pipe |
| CN2305543Y (en) * | 1996-06-13 | 1999-01-27 | 吴成山 | Composite sandwich thermal insulation pipeline |
-
2014
- 2014-10-28 CN CN201410584608.3A patent/CN104455932B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH058335A (en) * | 1991-06-28 | 1993-01-19 | Sumitomo Electric Ind Ltd | Heat-shrinkable foamed tube |
| CN2305543Y (en) * | 1996-06-13 | 1999-01-27 | 吴成山 | Composite sandwich thermal insulation pipeline |
| CN2293699Y (en) * | 1997-05-16 | 1998-10-07 | 郭春秋 | Direct buried corrosion-proof insulated pipe |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109931442A (en) * | 2019-03-28 | 2019-06-25 | 贵阳明通炉料有限公司 | A kind of high medium temperature wind and smoke pipeline of wear resistant heat preserving composite construction and production method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104455932B (en) | 2016-08-24 |
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Address after: 750002 Yinchuan Ningfeng District, the Ningxia Hui Autonomous Region 490, Yinchuan IBI breeding center two phase 10, 3 floor 301 room. Patentee after: Ningxia renle Hongguang cogeneration technology Limited by Share Ltd Address before: 750021 the Ningxia Hui Autonomous Region Yinchuan Xixia Industrial Park Jin Bo South Road Chuangxin crane hospital Patentee before: Ningxia Tianzong Hongguang Cogeneration Technology Co., Ltd. |